We will celebrate the 90th birthday of the Chinese Communist Party ______ July 1st, 2011. [ ]

My grandparents _________for fifty years and they are both quite healthy now.

There ______ a book, two pens and three pencils on the desk.

Please read them carefully. ____ you are, ___ mistakes you’ll make.

I’m 1.70 metres. Yao Ming is 2.27 metres. I am Yao Ming.